Pythamus Melichar, 1903

Wang, Yang & Zhang, Yalin, 2015, Two new species in the leafhopper genus Pythamus Melichar (Hemiptera: Cicadellidae: Evacanthinae) from China, Zootaxa 4058 (3), pp. 429-436 : 430

Key to species of Pythamus Melichar, 1903 (males)

1. Crown with off-white or red lateral markings, median longitudinal carina without white spots ( Figs 3 , 13 ). Male pygofer posteri- orly narrowed along caudo-ventral margin ( Figs 9 , 18 ) ................................................................................................................... 2

-. Crown with white spots along median longitudinal carina, lacking white or red lateral markings ( Figs 22 , 31 ). Male pygofer broad, with rounded caudal margin ( Figs 27 , 35 ).............................................................................................................................. 3

2. Markings on crown off-white ( Fig. 3 ). Ventral margin of aedeagus gradually curved dorsad in lateral view ( Fig. 6 )....................... ........................................................................................................................................................................ P. hainanensis sp. nov.

-. Markings on crown red ( Fig. 13 ). Ventral margin of aedeagus distinctly bent dorsad in lateral view ( Fig. 16 ) ...... P. rufus sp. nov.

3. Aedeagus without lateral processes but with lateral ridge, apex of shaft attenuated ...................................... P. dealbatus Melichar

-. Aedeagus with short or long lateral processes; apex of shaft not attenuated ( Figs 24 , 33 ) .............................................................. 4

4. Crown with yellow spot on medial keel extending posteriorly to form arrow. Male pygofer with S-shaped ventral process ........ 5

-. Crown with round yellow spot on median keel not extended posterad ( Fig. 21 ). Male pygofer with straight ventral process ( Fig. 27 ) ................................................................................................................................................. P. biramosus Viraktamath & Webb

5. Aedeagal shaft with processes longer than maximum width of shaft in lateral view ( Fig. 33 ) .. P. bispinosus Viraktamath & Webb

-. Aedeagal shaft with processes short, about half as long as maximum width of shaft in lateral view ............................................... ....................................................................................................................................................... P. montanus Viraktamath & Webb

Figures

FIGURES 1 – 10. Pythamus hainanensis sp. nov.: 1. male habitus, dorsal view; 2. male habitus, lateral view; 3. male head, dorsal view; 4. male face; 5. male head, lateral view; 6. aedeagus, lateral view; 7. aedeagus, connective and style, ventral view; 8. subgenital plate, ventral view; 9. male genital capsule, lateral view; 10. male pygofer side, ventral-lateral view.

FIGURES 11 – 19. Pythamus rufus sp. nov.: 11. male habitus, dorsal view; 12. male habitus, lateral view; 13. male head, dorsal view; 14. male face; 15. subgenital plate, ventral view; 16. aedeagus, lateral view; 17. aedeagus, ventral view; 18. male genital capsule, lateral view; 19. connective and style, ventral view.

FIGURES 20 – 28. Pythamus biramosus Viraktamath & Webb: 20. male habitus, dorsal view; 21. male habitus, lateral view; 22. male head, dorsal view; 23. male face; 24. aedeagus, lateral view; 25. aedeagus, ventral view; 26. subgenital plate, ventral view; 27. male genital capsule, lateral view; 28. connective and style, ventral view.

FIGURES 29 – 36. Pythamus bispinosus Viraktamath & Webb: 29. male habitus, dorsal view; 30. male habitus, lateral view; 31. male head, dorsal view; 32. male face; 33. aedeagus, lateral view; 34. aedeagus, connective and style, ventral view; 35. male genital capsule, lateral view; 36. subgenital plate, ventral view.